National Statistics Institute

Methods and projects / Standards and Classifications

Methods and Projects

The fundamental objective of statistical standardisation is to contribute to the creation of a coherent statistical system, with concepts, variables and classifications harmonised on a national and international level. Thus, reliable and comparable information in relation to the different sector fields and relevant topics for statistical analysis is guaranteed. Statistical classifications are a fundamental standardisation element.

Statistical classifications

  National classifications 

  International Classifications  

The Law 12/1989, of 9 May, on the Public Statistical Services (BOE 11-05-1989), in article 26 shows that suggestion of rules on concepts, definitions, statistical units, classifications, nomenclatures and codes for the classification of data and the presentation of results corresponds to the INE .

In the international scope, classifications are the responsibility of different bodies (Eurostat, UNESCO, etc).

Help applications for encoding and management of classifications
Standard Lists Approved by the National Statistics Institute

Autonomous City and Community



Countries and Other territories

Employment (CNO-2011)   Detailed information

Economic activity (CNAE-2009)   Detailed information  

In order to aid statistical use of information provided by citizens and companies to the different public administrations, it is a good idea for definitions and encoding of certain variables to always be the same. In order to achieve a gradual standardisation, the variables of statistical interest for which a standard list is available will be added on this page.

Standard for adjusting seasonal and calendar effects in short-term seriesMethodological information standard for online dissemination

Standardised methodological reports constitute the reference metadata that accompany statistical operations data that allow knowing the contents, methodologies and quality aspects associated with each statistical operation in a systematic, homogenous and structured way.

The INE Board of Directors approved the standard structure of the methodological report during their meeting of December 13, 2011. This standard has to be applied to statistical operations that publish data since the year 2012.

These reports or files are based on the ESMS (Euro SDMX Metadata Structure)structure, which is determined by the Recommendation of the Commission, 23 June 2009, about reference metadata for the European Statistical System.

Standard description

Available methodological reports

Concept glossary